GCVE-110-OSM-2026-14070

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published October 21, 2026

Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, install-time execution. ENTRY cli.js (bin: cli.js) - Preinstall Script in package.json: ""preinstall": "sh ./prepare.js && exit 0"" DESTINATION - 2 exfil (custom-c2, webhookServices) (values recorded in verified_iocs) EXFIL - OAST/Interactsh Exfiltration in x.js: "webhook.site" ADDITIONAL FINDINGS - Brand New Package - Very New NPM Publisher Account PAYLOAD FILES x.js

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

5.4/10

Medium · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected Products

Vendor	Product	Versions	Platforms
unknown	formatting-subtitles	all (affected)	—

References

Malicious npm package: formatting-subtitles

advisory

vendor

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